Home / 133,405.20-184,123.92-85,718.16

Finding the Fourth Proportional to 133,405.20, 184,123.92 and 85,718.16

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Solution

The fourth proportional to 133,405.20, 184,123.92 and 85,718.16 is: 118,306.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,405.20 : 184,123.92 = 85,718.16 : x
  2. Step 2: Convert to fraction form
    133,405.20/184,123.92 = 85,718.16/x
  3. Step 3: Cross multiply
    133,405.20x = 184,123.92 × 85,718.16
  4. Step 4: Simplify right side
    133,405.20x = 15,782,763,634.39
  5. Step 5: Solve for x
    x = 15,782,763,634.39/133,405.20
  6. Step 6: Final answer
    x = 118,306.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.